Short-range versus long-range electron-hole exchange interactions in semiconductor quantum dots

被引：94
|
作者：
Franceschetti, A [1 ]
Wang, LW [1 ]
Fu, H [1 ]
Zunger, A [1 ]
机构：
[1] Natl Renewable Energy Lab, Golden, CO 80401 USA
来源：
PHYSICAL REVIEW B | 1998年 / 58卷 / 20期
关键词：
D O I：
10.1103/PhysRevB.58.R13367
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Using a many-body approach based on atomistic pseudopotential wave functions we show that the electron-hole exchange interaction in semiconductor quantum dots is characterized by a large, previously neglected long-range component, originating from monopolar interactions of the transition density between different unit cells. The calculated electron-hole exchange splitting of CdSe and InP nanocrystals is in good agreement with recent experimental measurements. [S0163-1829(98)51144-7].
引用
收藏
页码：13367 / 13370
页数：4
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